Home / 87,579.66-131,387.94-28,410.72

Finding the Fourth Proportional to 87,579.66, 131,387.94 and 28,410.72

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Solution

The fourth proportional to 87,579.66, 131,387.94 and 28,410.72 is: 42,622.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,579.66 : 131,387.94 = 28,410.72 : x
  2. Step 2: Convert to fraction form
    87,579.66/131,387.94 = 28,410.72/x
  3. Step 3: Cross multiply
    87,579.66x = 131,387.94 × 28,410.72
  4. Step 4: Simplify right side
    87,579.66x = 3,732,825,974.72
  5. Step 5: Solve for x
    x = 3,732,825,974.72/87,579.66
  6. Step 6: Final answer
    x = 42,622.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.